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Sehen Sie sich die Kollektion für die COMSOL Conference 2024 an
Spontaneous emission -- an electron in an excited state of an emitter spontaneously decays to another state with lower energy -- plays an important role in determining the performance of light-emitting diodes, fluorescent dyes, colorants, solar cells, etc. The efficiency of spontaneous ... Mehr lesen
手性等离激元纳米结构被广泛研究并用于生物监测、分析化学和负折射率介质方面。在该结构中直接耦合的机制已经在相关研究中被发现。我们提出由金膜分隔两个金纳米棒(TNMF)的结构(图1)，并发现了间接耦合机制。 在 COMSOL Multiphysics® 中，射频电磁波，频域接口用于求解正弦时变电磁场分布，选此接口计算 TNMF 结构的光学响应。插值函数用来设置金的折射率；设置边界条件模拟周期性结构阵列。结果可通过端口2对端口1的响应获得，并可查看每个数据点的电场、电荷等分布。应用程序库中射频模块的“Plasmonic wire grating ... Mehr lesen
In solution, sodium dodecyl sulfate (SDS) (structure shown in Fig. 1) can form a boundary film on metal surfaces. Previous studies have extensively investigated the characteristics of such surfactant films experimentally [1][2][3]. A dependency of SDS surface concentration and film ... Mehr lesen
Laser immunotherapy (LIT) was developed to treat late-stage, metastatic cancers through local laser irradiation and immunological stimulation. In ILIT, the photothermal effect induces immune responses by destroying and interrupting tumor cells through temperature elevation in target ... Mehr lesen
Polymer–metal is a kind of new composite materials rather than traditional metal packaging materials. It has both features of polymer film and sheet metal. However, the polymer film will damage in the sheet metal forming process. Therefore, we try to established a sheet metal forming ... Mehr lesen
Imported beef often comes in halves or quarters of frozen bodies, which are irregular. Radio frequency (RF) heating can reduce processing time and minimize nutritional damage when applied in meat thawing. Because of its large penetration depth and high heating rate, RF thawing has a ... Mehr lesen
Surface-enhanced Raman spectroscopy (SERS) has been developed as a versatile tool for trace-molecule detection and biomolecular analysis by coupled gold or silver nanostructures in the past two decades. However, SERS suffers from a long-term limitation of application for surface analysis ... Mehr lesen
The optical fiber communication has been popular topics besides robot study nowadays. In the process of the Dense Wave-Length Division Multiplexing (DWDM) study, the dispersion compensate for the traditional optical fiber is difficult to solve for long distance transport information. It ... Mehr lesen
By using a combination of top-down and bottom-up strategies (see Fig. 1), rolled-up optical microcavities have gained considerable attention owing to their excellent customizability [1]. For example, the resonant spectrum of a rolled-up optical microcavity is well defined by simply ... Mehr lesen
Piezoelectric energy conversion has received great attention for vibration-to-electric energy conversion over the last five years. A typical piezoelectric energy harvester is a unimorph or a bimorph cantilever located on a vibrating host structure, to generate electrical energy from base ... Mehr lesen